EP2695476B1 - Signalisation en radiocommunication mobile - Google Patents

Signalisation en radiocommunication mobile Download PDF

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Publication number
EP2695476B1
EP2695476B1 EP12767751.6A EP12767751A EP2695476B1 EP 2695476 B1 EP2695476 B1 EP 2695476B1 EP 12767751 A EP12767751 A EP 12767751A EP 2695476 B1 EP2695476 B1 EP 2695476B1
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EP
European Patent Office
Prior art keywords
mobile radio
radio communications
network device
connection
signalling connection
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Active
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EP12767751.6A
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German (de)
English (en)
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EP2695476A1 (fr
EP2695476A4 (fr
Inventor
Yannick Lair
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NEC Corp
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NEC Corp
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Publication of EP2695476A4 publication Critical patent/EP2695476A4/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access

Definitions

  • the network device after transmitting a NAS signal comprising information indicating to the mobile radio communications device that it should employ a new NAS signalling connection to attempt re-establishment of connection with the network device, the network device is operative to release the existing NAS signalling connection between the network device and the mobile radio communications device.
  • the device upon receiving an indication that it should employ one of the existing NAS signalling connection; or the new NAS signalling connection to attempt re-establishment of connection with the network device, the device is operative to transmit a request for re-establishment of connection to the network device via one of: the existing NAS signalling connection; or the new NAS signalling connection as determined from the indication.
  • the information indicating that re-establishment of connection is to be attempted using a new NAS signalling connection may be expressed as an inverse of the information indicating that re-establishment of connection is to be attempted using an existing NAS signalling connection.
  • the information may comprise at least one flag in the NAS signal, and each at least one flag may comprise a bit of the NAS signal.
  • a computer program, computer program product or computer readable medium comprising instructions for enabling a mobile radio communications device to carry out a method as described above.
  • a re-attach process commences with a request 104 sent from the UE 100 to the network device 102.
  • the network device 102 is unable to recover a context for the UE 100, or has lost the context for the UE 100, and is therefore unable to carry out the request 104 received from the UE 100,
  • the network device 102 indicates to the UE 100 that it cannot carry out the request by sending a rejection 106 to the UE 100.
  • the rejection 106 may comprise a service reject in UMTS (under causes #9 or #10, as described in 3GPP TS 24.008), or a service reject in LTE (under causes #9 or #10, as described in 3 GPP TS 24.301) or a TAU reject in LTE (under causes #9, #10 or #405 as described in 3GPP TS 24.301 or a RAU reject in UMTS (under causes #9 or #10, as described in 3GPP TS 24.008).
  • a service reject in UMTS under causes #9 or #10, as described in 3GPP TS 24.008
  • LTE under causes #9 or #10, as described in 3 GPP TS 24.301
  • TAU reject in LTE under causes #9, #10 or #405 as described in 3GPP TS 24.301
  • RAU reject in UMTS under causes #9 or #10, as described in 3GPP TS 24.008.
  • This attempt at re-establishing a connection with the network device 102 is successful and the network device 102 acknowledges the success by transmitting an accept message 122 to the UE 100.
  • a re-attach process commences with a request 204 for access sent from the UE 200 to the network device 202.
  • This request 204 along with, a rejection 206 sent by network device 202 to UE 200 correspond to request 104 and rejection 106 respectively as described above in relation to Fig. 1 .
  • the UE 200 After establishment of a new NAS signalling connection between the UE 200 and the network device 202f the UE 200 transmits 218 another request for re-establishment of connection to the network device 202.
  • This attempt at re-establishing a connection with the network device 202 is successful and the network device 202 acknowledges the success by transmitting an accept message 220 to the UE 100.
  • a re-attach process commences with a request 304 for access sent from the UB 300 to the network device 302.
  • This request 304 corresponds to requests 104 and 204 as described above in relation to Figs. 1 and 2 .
  • the network device 302 is unable to recover a context for the UE 300 (e.g. for the reasons described above), or has lost the context for the UE 300, and is therefore unable to carry out the request 304 received from the UE 300.
  • the attempt by the UE 300 to access the network via network device 302 fails.
  • the network device 302 indicates to the UE 300 that it cannot carry out the request by sending a rejection 306 to the UE 100.
  • This attempt at re-establishing a connection with the network device 302 is successful and the network device 302 acknowledges the success by transmitting an accept message 314 to the UE 300.
  • an indicator 308 which contains information for directing the UE 300 to employ a particular connection to attempt a re-attach process, may reduce and/or inhibit delays in re-attach processes, for example, such as those illustrated in Figs. 1 and 2 .
  • Fig. 4 is a schematic illustration of a flow of messages and/or data between mobile radio communications device User Equipment (UE) 400 and a mobile radio communications network device 402 (hereinafter “network device”) during a process to re-establish connection between the UE 400 and network device 402 in accordance with a second one or more embodiments of the present invention.
  • UE User Equipment
  • network device mobile radio communications network device
  • a re-attach process commences with a request 404 for access sent from the UE 400 to the network device 402.
  • This request 404 corresponds to requests 104, 204 and 304 as described above in relation to Figs. 1 , 2 and 3 .
  • the network device 402 is unable to recover a context for the UE 400 (e.g. for the reasons described above), or has lost the context for the UE 400 and is therefore unable to carry out the request 404 received from the UE 400.
  • the attempt by the UE 400 to access the network via network device 402 fails.
  • the network device 402 indicates to the UE 400 that it cannot carry out the request by sending a rejection 406 to the UE 100.
  • the UE 400 once having made the determination that it should await release of the existing NAS signalling connection before establishing a new NAS signalling connection with the network device 402, waits for the release 412 of the existing NAS signalling connection by the network device 402.
  • the UE 400 When the existing NAS signalling connection has been released 412, the UE 400 is operative to establish 414 a new NAS signalling connection with, the network device 402.
  • This attempt at re-establishing a connection with the network device 402 is successful and the network device 402 acknowledges the success by transmitting an accept message 418 to the UE 400.
  • the network device 402 should release the existing NAS signalling connection promptly after sending the rejection 406 to the UE 400.
  • the one or more embodiments described above, and as illustrated in Figs. 3 and 4 may inhibit any ambiguity as to what the UE is required to do. That is, the UE is directed to employ an existing connection or use a new connection by the network device. Therefore, latency in the re-attach process may be reduced and/or inhibited, for example, when a re-attach request is lost when the network device, unexpectedly to the UE, releases the existing NAS signalling connection, or whilst the UE awaits release of an existing signalling connection by the network device.
  • UE 500 User Equipment (UE) 500 in the form of a mobile phone handset and having a standard air interface comprising antenna 502 and reception/transmission 504 functionally connected within the handset to memory storage 506, a processor 508 and a user interface 510.
  • UE User Equipment
  • the processor 508 includes an indicator extraction function 512 which serves to extract information from the indicator (e.g. 308 of Fig. 3 or 408 of Fig. 4 ) received in a rejection from a network device to allow the processor 508 to determine the appropriate manner for conducting the re-attach process.
  • an indicator extraction function 512 which serves to extract information from the indicator (e.g. 308 of Fig. 3 or 408 of Fig. 4 ) received in a rejection from a network device to allow the processor 508 to determine the appropriate manner for conducting the re-attach process.
  • the one or more embodiments of the present invention have described various rejection types which comprised a service reject (under causes #9 or #10) or a TAU reject (under causes #9, #10 or #40) or a RAU reject (under causes #9 or #10), the one or more embodiments may also be suitable for arrangements where other rejections are issued.
  • the one or more embodiments may be suitable in the case of a network device initiated detach procedure (LTE and/or UMTS), and where a "detach" request from the network device to the UE would contain an indicator comprising information for directing the UE to proceed in the manner described above, and as illustrated in one of Figs. 3 or 4 .
  • the one or more embodiments may be suitable in any case where the network device requires the UE to perform a re ⁇ attach process.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Claims (19)

  1. Dispositif de réseau de radiocommunications mobile (302) apte à émettre un signal de strate de non-accès, NAS, à un dispositif de radiocommunications mobile (300) après une tentative infructueuse par ledit dispositif de radiocommunications mobile (300) d'accéder à un réseau de radiocommunications mobile par l'intermédiaire dudit dispositif de réseau (302), ledit dispositif de réseau (302) étant conçu pour comporter au sein dudit signal NAS des informations indiquant audit dispositif de radiocommunications mobile (300) laquelle parmi : (i) une connexion de signalisation NAS existante ; ou (ii) une nouvelle connexion de signalisation NAS, ledit dispositif de radiocommunications mobile (300) devrait employer pour tenter un rétablissement de connexion avec ledit dispositif de réseau (302).
  2. Dispositif de réseau (302) selon la revendication 1, dans lequel lesdites informations indiquant qu'un rétablissement de connexion doit être tenté en utilisant une nouvelle connexion de signalisation NAS sont exprimées en tant qu'inverse desdites informations indiquant qu'un rétablissement de connexion doit être tenté en utilisant une connexion de signalisation NAS existante.
  3. Dispositif de réseau (302) selon la revendication 1 ou 2, dans lequel, à réception d'une demande de rétablissement de connexion en provenance dudit dispositif de radiocommunications mobile (300) par l'intermédiaire de l'une parmi : ladite connexion de signalisation NAS existante ; ou ladite nouvelle connexion de signalisation NAS, ledit dispositif de réseau (302) est apte à accepter ladite demande et rétablir la connexion avec ledit dispositif de radiocommunications mobile (300).
  4. Dispositif de réseau (302) selon l'une quelconque ou plusieurs des revendications précédentes, dans lequel, après l'émission d'un signal NAS comprenant des informations indiquant audit dispositif de radiocommunications mobile (300) qu'il devrait employer une nouvelle connexion de signalisation NAS pour tenter un rétablissement de connexion avec ledit dispositif de réseau (302), ledit dispositif de réseau (302) est apte à libérer ladite connexion de signalisation NAS existante entre ledit dispositif de réseau (302) et ledit dispositif de radiocommunications mobile (300).
  5. Dispositif de réseau (302) selon l'une quelconque ou plusieurs des revendications 1 à 4, dans lequel, après l'émission d'un signal NAS comprenant des informations indiquant audit dispositif de radiocommunications mobile (300) qu'il devrait employer une connexion de signalisation NAS existante pour tenter un rétablissement de connexion avec ledit dispositif de réseau (302), ledit dispositif de réseau (302) est apte à maintenir ladite connexion de signalisation NAS existante entre ledit dispositif de réseau (302) et ledit dispositif de radiocommunications mobile (300).
  6. Dispositif de réseau (302) selon l'une quelconque ou plusieurs des revendications précédentes, dans lequel lesdites informations comprennent au moins un drapeau dans ledit signal NAS.
  7. Dispositif de réseau (302) selon la revendication 6, dans lequel chacun desdits au moins un drapeau comprend un bit dudit signal NAS.
  8. Dispositif de réseau (302) selon l'une quelconque ou plusieurs des revendications précédentes, dans lequel ledit dispositif de réseau (302) peut fonctionner est un réseau UMTS et/ou un réseau LTE.
  9. Dispositif de radiocommunications mobile (300) apte à recevoir un signal de strate de non-accès, NAS, en provenance d'un dispositif de réseau de radiocommunications mobile (302) après une tentative infructueuse par ledit dispositif de radiocommunications mobile (300) d'accéder à un réseau de radiocommunication mobile par l'intermédiaire dudit dispositif de réseau (302), ledit dispositif de radiocommunications mobile (300) étant conçu pour identifier au sein dudit signal NAS des informations indiquant audit dispositif de radiocommunications mobile (300) laquelle parmi : (i) une connexion de signalisation NAS existante ; ou (ii) une nouvelle connexion de signalisation NAS, ledit dispositif de radiocommunications mobile (300) devrait employer pour tenter un rétablissement de connexion avec ledit dispositif de réseau (302).
  10. Dispositif selon la revendication 9, dans lequel lesdites informations indiquant qu'un rétablissement de connexion doit être tenté en utilisant une nouvelle connexion de signalisation NAS sont exprimées en tant qu'inverse desdites informations indiquant qu'un rétablissement de connexion doit être tenté en utilisant une connexion de signalisation NAS existante.
  11. Dispositif selon la revendication 9 ou 10, dans lequel, à réception d'une indication qu'il devrait employer l'une parmi : ladite connexion de signalisation NAS existante ; ou ladite nouvelle connexion de signalisation NAS pour tenter un rétablissement de connexion avec ledit dispositif de réseau (302), ledit dispositif est apte à émettre une demande de rétablissement de connexion audit dispositif de réseau (302) par l'intermédiaire de l'une parmi : ladite connexion de signalisation NAS existante ; ou ladite nouvelle connexion de signalisation NAS tel que déterminé à partir de ladite indication.
  12. Dispositif selon l'une quelconque ou plusieurs des revendications 9 à 11, dans lequel, lorsqu'il est déterminé qu'un rétablissement de connexion avec ledit dispositif de réseau de radiocommunications mobile (302) doit être tenté en utilisant ladite nouvelle connexion de signalisation NAS, ledit dispositif est apte à attendre une libération de ladite connexion de signalisation NAS existante par ledit dispositif de réseau (302) et, lors d'une telle libération, à établir une nouvelle connexion de signalisation NAS avec ledit dispositif de réseau (302).
  13. Dispositif selon l'une quelconque ou plusieurs des revendications 9 à 12, dans lequel lesdites informations comprennent au moins un drapeau dans ledit signal NAS.
  14. Dispositif selon la revendication 13, dans lequel chacun desdits au moins un drapeau comprend un bit dudit signal NAS.
  15. Dispositif selon l'une quelconque ou plusieurs des revendications 9 à 14, dans lequel ledit dispositif peut fonctionner dans un réseau UMTS et/ou un réseau LTE.
  16. Procédé pour émettre, en provenance d'un dispositif de réseau de radiocommunications mobile (302), un signal de strate de non-accès, NAS, à un dispositif de radiocommunications mobile (300) après une tentative infructueuse par ledit dispositif de radiocommunications mobile (300) d'accéder à un réseau de radiocommunications mobile par l'intermédiaire dudit dispositif de réseau (302), ledit procédé comportant ladite étape consistant à ajouter audit signal NAS des informations indiquant audit dispositif de radiocommunications mobile (300) laquelle parmi : (i) une connexion de signalisation NAS existante entre ledit dispositif de radiocommunications mobile (300) et ledit dispositif de réseau de radiocommunications mobile (302) ; ou (ii) une nouvelle connexion de signalisation NAS entre ledit dispositif de radiocommunications mobile (300) et ledit dispositif de réseau de radiocommunications mobile (302), ledit dispositif de radiocommunications mobile (300) devrait employer pour tenter un rétablissement de connexion avec ledit dispositif de réseau (302).
  17. Procédé pour recevoir, au niveau d'un dispositif de radiocommunications mobile (300), un signal de strate de non-accès, NAS, en provenance d'un dispositif de réseau de radiocommunications mobile (302), après une tentative infructueuse par ledit dispositif de radiocommunications mobile (300) d'accéder à un réseau de radiocommunications mobile par l'intermédiaire dudit dispositif de réseau (302), ledit procédé comportant l'étape consistant à identifier au sein dudit signal NAS des informations indiquant audit dispositif de radiocommunications mobile (300) laquelle parmi : (i) une connexion de signalisation NAS existante entre ledit dispositif de radiocommunications mobile (300) et ledit dispositif de réseau de radiocommunications mobile (302) ; ou (ii) une nouvelle connexion de signalisation NAS entre ledit dispositif de radiocommunications mobile (300) et ledit dispositif de réseau de radiocommunications mobile (302), ledit dispositif de radiocommunications mobile (300) devrait employer pour tenter un rétablissement de connexion avec ledit dispositif de réseau (302).
  18. Programme d'ordinateur, produit de programme d'ordinateur ou support lisible par ordinateur, comprenant des instructions pour permettre à un dispositif de réseau de radiocommunications mobile (302) de mettre en oeuvre un procédé selon la revendication 16 ou pour permettre à un dispositif de radiocommunications mobile (300) de mettre en oeuvre un procédé selon la revendication 17.
  19. Système de communication mobile comportant un dispositif de réseau de radiocommunications mobile (302) selon l'une quelconque ou plusieurs des revendications 1 à 8 et un dispositif de radiocommunications mobile (300) selon l'une quelconque ou plusieurs des revendications 9 à 15.
EP12767751.6A 2011-04-06 2012-04-04 Signalisation en radiocommunication mobile Active EP2695476B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1105854.2A GB2489725A (en) 2011-04-06 2011-04-06 Non-access stratum signalling to indicate use of new or existing NAS signalling connection for connection re-establishment.
PCT/JP2012/059836 WO2012137978A1 (fr) 2011-04-06 2012-04-04 Signalisation en radiocommunication mobile

Publications (3)

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EP2695476A1 EP2695476A1 (fr) 2014-02-12
EP2695476A4 EP2695476A4 (fr) 2015-11-18
EP2695476B1 true EP2695476B1 (fr) 2019-07-24

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US (1) US9554349B2 (fr)
EP (1) EP2695476B1 (fr)
JP (1) JP5928478B2 (fr)
GB (1) GB2489725A (fr)
WO (1) WO2012137978A1 (fr)

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GB2506917B (en) * 2012-10-12 2015-06-03 Samsung Electronics Co Ltd Re-establishment of a connection with a mobile terminal
MX342890B (es) * 2012-10-15 2016-10-18 Nokia Technologies Oy Reincorporacion a la red despues de la recepcion de un rechazo de servicio en un equipo de usuario en respuesta a una solicitud de servicio.
GB2507545B (en) * 2012-11-02 2016-03-23 Broadcom Corp Apparatus and method
GB2516837B (en) * 2013-07-31 2015-12-09 Ip Access Ltd Network elements, wireless communication system and methods therefor
US10278232B2 (en) * 2013-09-20 2019-04-30 Qualcomm Incorporated Apparatus and method for handling out-of-sync and radio link failure with fractional DPCH calls
US10229105B1 (en) * 2014-09-30 2019-03-12 EMC IP Holding Company LLC Mobile log data parsing
WO2019183944A1 (fr) * 2018-03-30 2019-10-03 Qualcomm Incorporated Connexion de signalisation de nas basée sur internet

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Also Published As

Publication number Publication date
JP5928478B2 (ja) 2016-06-01
EP2695476A1 (fr) 2014-02-12
GB2489725A (en) 2012-10-10
JP2014512708A (ja) 2014-05-22
US20140024371A1 (en) 2014-01-23
GB201105854D0 (en) 2011-05-18
EP2695476A4 (fr) 2015-11-18
US9554349B2 (en) 2017-01-24
WO2012137978A1 (fr) 2012-10-11

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